Potato Casserole - cooking recipe

Ingredients

8 large potatoes
1 c. milk
1/4 lb. grated Cheddar cheese
1/4 lb. grated mild cheese
1/2 pt. whipping cream (not whipped)
1 tsp. mustard
1 1/2 tsp. salt
1/2 c. chopped onion
pepper to taste

Preparation

Boil potatoes in jackets, or bake in microwave (not too mushy).
Cool; peel.
Grate them into baking dish.
Heat other ingredients together until cheese melts.
Pour over potatoes. Bake for 1 hour at 325\u00b0.